Question

Neil studied how a pulley helps move an object. Neil tied a rope to an object with a mass of 10 kilograms (kg) and attached it to a pulley. He then pulled down on the rope. When Neil pulled down on the rope, which did he most likely learn about the force required to lift the object? Group of answer choices
1. It was half of the weight of the object.
2. It was equal to the weight of the object
3. It was two times the weight of the object.
4. It was three times the weight of the object.

Answer 1

Answer:2

Explanation:

Given

mass of object $m=10\ kg$

weight of object $=mg$

Weight$=10\times 9.8$

If body is being pulled with constant velocity then the net force on body is zero i.e.

Force=weight of object

$F=98\ kg$

force is equal to weight of object

option 2 is correct